Return-Path: Delivered-To: apmail-httpd-users-archive@httpd.apache.org Received: (qmail 4148 invoked by uid 500); 19 Apr 2002 20:04:08 -0000 Mailing-List: contact users-help@httpd.apache.org; run by ezmlm Precedence: bulk Reply-To: users@httpd.apache.org list-help: list-unsubscribe: list-post: Delivered-To: mailing list users@httpd.apache.org Received: (qmail 4129 invoked from network); 19 Apr 2002 20:04:08 -0000 Received: from pd9e3838f.dip0.t-ipconnect.de (HELO it97.dyn.dhs.org) (217.227.131.143) by daedalus.apache.org with SMTP; 19 Apr 2002 20:04:08 -0000 Received: from it97.dyn.dhs.org ([192.168.111.111]) by it97.dyn.dhs.org (Netscape Messaging Server 4.15) with ESMTP id GUTZQX00.FIM for ; Fri, 19 Apr 2002 22:04:09 +0200 Message-ID: <3CC07839.1020807@it97.dyn.dhs.org> Date: Fri, 19 Apr 2002 22:04:09 +0200 From: "Irmund Thum" Organization: i.t webdevelopment User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.9) Gecko/20020314 X-Accept-Language: en, de-DE MIME-Version: 1.0 To: users@httpd.apache.org Subject: Re: 502 Proxy Error References: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Rating: daedalus.apache.org 1.6.2 0/1000/N Hans Juergen von Lengerke wrote: > Neumaier, Jamie H (TRANS) on Apr 19, 2002: > > >>I am using Apache 1.3.19 on Red Hat Linux 7.1 as a reverse proxy server. I >>am periodically seeing a 502 Proxy Error when trying to POST a form. >>Following is the error message that I see: >> >>Proxy Error >>The proxy server received an invalid response from an upstream server. >>The proxy server could not handle the request POST >>/efactory/eDCC/dccDesg.jsp. >>Reason: Document contains no data >> >>Apache/1.3.19 Server at devssogets.trans.ge.com Port 80 > > > There is nothing wrong with your reverse proxy. Look for the error on > the server that runs /efactory/eDCC/dccDesg.jsp. in your case the Java Server Pages from the remote server probably simply have a timeout. for me it looks like that "502 Bad Gateway" is a very general statement (rfc 2068): "The proxy server received an invalid response from an upstream server" Reasons may be: - interface defect - upstream server and the gateway/proxy do not agree on the protocol for exchanging data (misconfiguration) - poor IP communication between back-end computers, chain broken any other ideas, suggestions? thanks -- _ ___ | | Irmund Thum | | --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See for more info. To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org For additional commands, e-mail: users-help@httpd.apache.org